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Redox properties of 17-electron thiolate complexes of cyclopentadienyl iron (III) by C. Díaz; E. Araya; M.A. Santa Ana is a Chemistry article available to read on EtoBox.
What is Redox properties of 17-electron thiolate complexes of cyclopentadienyl iron (III) about?
The redox electrochemistry of iron (lI1) thiolate complexes of the type [CpFe(dppe)-SR]PF, R = CH3, C3H~, C6H5, p-C~H4Br and thiobenzothiazole has been examined by cyclic voltammetry, coulometry and spectroelectrochemistry methods. Four redox waves were observed in the range -1.5 to + 1.5 V (S.C.E) in CH\_,CI> Around 0.0V the metal centered reduction Fe (lI1)--\*Fe (ll) process was observed, while that around +0.5 V the wave observed was attributed to a ligand centered oxidation. Strongly irreversible waves of oxidation near 1.3 V were assigned to the oxidation of RSSR while a reduction wave also strongly irreversible at very high negative potential was attributed to the reduction of the RSSR free ligand, RSSR+ 2e-~2RS . The redox wave observed for the disulphides compounds are discussed in terms of a reductive elimination of RSSR Chemical and electrochemical reduction of the complexes [CpFe(dppe)-SR]PF6 was accomplished by the color changes blue ---, red-brown characteristic of the redox change 17e---, 18e
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- Author
- C. Díaz; E. Araya; M.A. Santa Ana
- Publisher
- Elsevier Science; Elsevier ; Elsevier Ltd.; Elsevier BV (ISSN 0277-5387)
- Published
- 1998
- Language
- EN
- Field
- Chemistry (Physical Sciences)